and satellite transmission / 衛星通信の登場

The last stamp which is showing a Telegraph key – this one shows the history of telecommunications, all-in-one. The aerial in front of the dome is called a Helical antenna, which was built for High frequency radio communications before the usage of satellites.

I like this way to apply the traditional printing method of intaglio, for picturing the historical and the latest technology, together with lots of stars ( and satellites ) in the sky. Designed by the same engraver as this stamp, one of my top favourites.